140282040 has 32 divisors (see below), whose sum is σ = 420846480. Its totient is φ = 37408512.

The previous prime is 140281993. The next prime is 140282057. The reversal of 140282040 is 40282041.

It is a junction number, because it is equal to n+sod(n) for n = 140281998 and 140282016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584389 + ... + 584628.

Almost surely, 2^140282040 is an apocalyptic number.

140282040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140282040 is an abundant number, since it is smaller than the sum of its proper divisors (280564440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140282040 is a wasteful number, since it uses less digits than its factorization.

140282040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169031 (or 1169027 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 140282040 is about 11844.0719349386. The cubic root of 140282040 is about 519.5978646363.

Subtracting from 140282040 its reverse (40282041), we obtain a palindrome (99999999).

The spelling of 140282040 in words is "one hundred forty million, two hundred eighty-two thousand, forty".